LCOM1920-T02G10

#include <lcom/lcf.h>

#include <minix/sysutil.h>

#include <lcom/lab3.h>

#include <stdbool.h>

#include "i8254.h"

#include <stdint.h>

//#include <timer.c>

#define IRQ_KB 1

#define DELAY_US 20000

#define EXIT_CODE 0x81

#define I_O_BUFFER 0x60

static uint32_t scancode;

int main(int argc, char *argv[]) {

  // sets the language of LCF messages (can be either EN-US or PT-PT)

  lcf_set_language("EN-US");

  // enables to log function invocations that are being "wrapped" by LCF

  // [comment this out if you don't want/need it]

  lcf_trace_calls("/home/lcom/labs/lab3/trace.txt");

  // enables to save the output of printf function calls on a file

  // [comment this out if you don't want/need it]

  lcf_log_output("/home/lcom/labs/lab3/output.txt");

  // handles control over to LCF

  // [LCF handles command line arguments and invokes the right function]

  if (lcf_start(argc, argv))

    return 1;

  // LCF clean up tasks

  // [must be the last statement before return]

  lcf_cleanup();

  return 0;

}

void(kbc_ih)() {}

int(kbd_test_scan)() {

  /* To be completed by the students */

  int ipc_status;

  uint8_t r, bit_no = 0;

  message msg;

  int hook_id = bit_no;

  uint8_t scan_arr[2] = {0, 0};

  int flag = 0;

  uint32_t cnt=0;

  printf("%d\n",

         sys_irqsetpolicy(IRQ_KB, IRQ_REENABLE | IRQ_EXCLUSIVE, &hook_id));

  /* sys_outb(0x64, 0x20);

  sys_inb(0x64, &scancode);

  printf("%x\n", scancode);

  if (scancode & 0x10) {

    scancode = (scancode & 0xEF);

  }

  printf("%x\n", scancode);

  sys_outb(0x64, 0x60);

  sys_outb(0x64, scancode); */

  printf("%x\n", scancode);

  //kbc_ih();

  printf("\n");

  while (scancode !=

         EXIT_CODE)

  { /* You may want to use a different condition */

    /* Get a request message. */

    // printf("1\n");

    // printf("cont:%d, time:%d\n\n",cont/60,time);

    if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) {

      printf("driver_receive failed with: %d", r);

      continue;

    }

    if (is_ipc_notify(ipc_status)) { /* received notification */

      switch (_ENDPOINT_P(msg.m_source)) {

      case HARDWARE: /* hardware interrupt notification */

        if (msg.m_notify.interrupts & BIT(0)) { /* subscribed interrupt */

          #ifdef LAB3

          cnt++;

          #endif

          sys_inb(0x64, &scancode);

          if (scancode & 0x01) {

            #ifdef LAB3

            cnt++;

            #endif

            sys_inb(0x60, &scancode);

          if (scancode != 0xe0 && flag == 0) {

            // tickdelay(micros_to_ticks(DELAY_US));

            scan_arr[0] = scancode;

            kbd_print_scancode(!(scancode & 0x80), 1, scan_arr);

          }

          else if (scancode == 0xe0) {

            scan_arr[0] = scancode;

            flag = 1;

          }

          else if (flag == 1) {

            scan_arr[1] = scancode;

            kbd_print_scancode(!(scancode & 0x80), 2, scan_arr);

            flag = 0;

          }

          }

        }

        // printf("msg:%x\n",msg.m_notify.interrupts);

        break;

      default:

        // printf("2\n");

        break; /* no other notifications expected: do nothing */

      }

    } else {

      // printf("3\n"); /* received a standard message, not a notification */

      /* no standard messages expected: do nothing */

    }

  }

  kbd_print_no_sysinb(cnt);

  if (sys_irqrmpolicy(&hook_id) != 0)

    return 1;

  return 0;

}

int(kbd_test_poll)() {

  /* To be completed by the students */

  uint32_t key=0;

  uint8_t scan_arr[2] = {0, 0};

  int flag = 0;

  uint32_t cnt=0;

  sys_outb(0x64,0x20);        //enable interrupts again

  sys_outb(0x64, 0x60);

  sys_inb(0x60,&key);

  while(scancode != EXIT_CODE)

  {

    tickdelay(micros_to_ticks(DELAY_US));

    #ifdef LAB3

    cnt++;

    #endif

    sys_inb(0x64, &scancode);

          if (scancode & 0x01) {

            #ifdef LAB3

            cnt++;

             #endif

            sys_inb(0x60, &scancode);

          if (scancode != 0xe0 && flag == 0) {

            scan_arr[0] = scancode;

            kbd_print_scancode(!(scancode & 0x80), 1, scan_arr);

          }

          else if (scancode == 0xe0) {

            scan_arr[0] = scancode;

            flag = 1;

          }

          else if (flag == 1) {

            scan_arr[1] = scancode;

            kbd_print_scancode(!(scancode & 0x80), 2, scan_arr);

            flag = 0;

          }

        }

  }

  kbd_print_no_sysinb(cnt);

  sys_outb(0x64,0x60);        //enable interrupts again

  sys_outb(0x60,  key |  BIT(0));      //enable interrupts again

  return 0;

}

int(kbd_test_timed_scan)(uint8_t n) {

  /* To be completed by the students */

  uint8_t scan_arr[2] = {0, 0};

  int flag=0;

   int ipc_status;

  message msg;

  uint8_t r;

  uint8_t bit_no_timer = 0, bit_no_kbd = 1;

  int hook_id_kbd=bit_no_kbd, hook_id_timer=bit_no_timer;

  int cont=0,cnt=0;

  sys_irqsetpolicy(IRQ_TIMER,IRQ_REENABLE,&hook_id_timer);

  sys_irqsetpolicy(IRQ_KB, IRQ_REENABLE | IRQ_EXCLUSIVE, &hook_id_kbd);

  kbc_ih();

  while( (cont/DEFAULT_FREQ)<n && scancode !=EXIT_CODE) //se não atingir o tempo de espera nem a tecla for ESC

 {

   /* You may want to use a different condition */

     /* Get a request message. */

     // printf("1\n");

     //printf("cont:%d, time:%d\n\n",cont/60,time);

     if ( (r = driver_receive(ANY, &msg, &ipc_status)) != 0 )

     {

        printf("driver_receive failed with: %d", r);

       continue;

    }

    if (is_ipc_notify(ipc_status)) {

        switch (_ENDPOINT_P(msg.m_source)) {

            case HARDWARE:

                if (msg.m_notify.interrupts  & BIT(bit_no_timer)) {

                   cont++;

                   if(cont%DEFAULT_FREQ==0)

                   timer_print_elapsed_time();

                   //printf("cont:%d\n",cont);

               }

               if (msg.m_notify.interrupts  & BIT(bit_no_kbd))

               {

                  #ifdef LAB3

                  cnt++;

                 #endif

                 sys_inb(0x64, &scancode);

                 if (scancode & 0x01) {

                  #ifdef LAB3

                   cnt++;

                    #endif

                   sys_inb(0x60, &scancode);

                 if (scancode != 0xe0 && flag == 0)

                 {

                   scan_arr[0] = scancode;

                   kbd_print_scancode(!(scancode & 0x80), 1, scan_arr);

                 }

                 else if (scancode == 0xe0)

                  {

                   scan_arr[0] = scancode;

                    flag = 1;

                 }

                 else if (flag == 1)

                 {

                    scan_arr[1] = scancode;

                     kbd_print_scancode(!(scancode & 0x80), 2, scan_arr);

                   flag = 0;

                   }

                   cont=0;

               }

                //printf("msg:%x\n",msg.m_notify.interrupts);

                break;

            default:

                //printf("2\n");

                break; /* no other notifications expected: do nothing */

        }

    }

     // printf("3\n"); /* received a standard message, not a notification */

        /* no standard messages expected: do nothing */

 }

 }

  kbd_print_no_sysinb(cnt);

  if(sys_irqrmpolicy(&hook_id_timer)!=0) return 1;

  if(sys_irqrmpolicy(&hook_id_kbd)!=0) return 1;

    return 0;

  //printf("%s is not yet implemented!\n", __func__);

}